bateman



(No Model.)

W., F. BATEMAR Apparatus. far; Tampering Wir-e'for Gard-Teeth.

Na. 228,301. Patented June 1,1880.

WITNESSES INVERTQR N. PETERS. PHOYO-LITHDGRAPHER. WASHINGTON D c NITED STATES PATENT OFFICE.

WILLIAM F. BATEMAN, OFLOW MOOR, ENGLAND, ASSIGNOR TO DANIEL BATEMAN, OF SAME PLACE.

APPARATUS FOR TEMPERlNG-WIRE FOR CARD-TEETH.

SPECIFICATION forming part of Letters Patent No. 228,301, dated June 1, 1880.

Application filed April 20, 1880. (No model.) Patented in England December 5. 1877.

To all whom it may concern:

Be it known that I, WILLIAM FREDERICK BATEMAN, a subject of the Queen of Great Britain and Ireland, and a resident of Low Moor, in the county of York, England, have invented certain Improvements in the Mannfacture of Gard-Teeth and Machines therefor, for which I have obtained a British Patent, No. 4,610, dated December 5, 1877, and of which the following is a specification.

My invention consists of a mode of preparing tempered steel wire for conversion into card-teeth, and of making card-teeth and apparatus therefor, all as described hereinafter.

In the accompanying drawings, Figure 1 is a perspective view of the finished cardtooth drawn to an enlarged scale; Fig. 2, a strip of tempered steel wire, made soft at intervals, prior to being converted into the card-teeth; and Fig. 3, a perspective view, showing a mode of and apparatus for preparing the tempered steel wire for the teeth as the said wire is being fed to the machine.

The black-shaded portion of the steel cardtooth shown in the enlarged view, Fig. 1, indicates that portion of the wire which is soft, the unshaded portion being hard and of an elastic temper, and the line-shading indieating a gradual diminution of temper.

The strip of wire, Fig. 2, is, in the first instance, made of an elastic temper throughout, but is softened at the intervals a a, the wire being cut into lengths by severing at b I), and each length being bent at d d and e c, Fig. 1, the softness of the wire permitting the easy bending of it at these points.

This tempering of the wire at intervals can be best done by a simple attachment to a card-machine, a portion of which is shown in Fig. 3, D being one of the frames or stands; E E E, cross-bars of the frame, and F a fixed plate, to which is pivoted alever, G, operated by a scroll-cam, h, on a shaft, H.

It will be unnecessary to describe these parts minutely, as they are common to all card-machines. It will suffice to observe that griping-jaws at the end of the long arm of the lever G seize the wire :0 at intervals and draw it forward to the desired extent to the machine, where it is severed, bent to the desired shape, and pushed into the leather or fabric which forms the base of the cardclothing.

To the frame is secured an arm, M, having at the end a clamp, m, which imparts sufficient friction to the wire to keep the latter tight without interfering with the action of the feed-lever G.

To a pin on the side of the frame is hung a hollow hub, n, to which common illuminating-gas and air under pressure are introduced through pipes 19 and q, and from this hollow hub projects an arm, t, which is caused to bear against a cam, 11, on the shaft H by a spring, to.

A tube, y, projects from and communicates with the hollow hub, and this tube is provided at the end with a suitable burner, where the gas is ignited.

A vibrating movement is imparted to the hub, and consequently to the tube and its flame, by the cam o, the movement of the tube being such, in respect to that of the feeding-lever, that the flame will be in contact with the wire while the latter is stationary, and for a sufficient length of time to soften the wire to the desired extent.

I claim as my inventionl. The mode described of preparing tempered steel wire for conversion into cardteeth, the said mode consisting in softening the wire at definite intervals, as specified.

2. The mode described of making cardteeth by, first, softening steel wire at definite intervals; second, severing the wire into strips, each of which is softened at and near the middle; and, third, bending the strips into the required form of card teeth, all as described.

3. The combination, in a card-tooth machine, of feeding devices for the card-wire with a gas-burner and devices by which an intermittent motion across the line of feed of the wire'is imparted to the said burner from the driving-shaft of the machine, all substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

WM. FREDK. BATEMAN.

Witnesses:

JOHN WAUGH, JOHN GILL. 

